IMAC opened on Nasdaq February 13th and rang the bell on the 20th. I also saw a company that opened and rang the bell on the same day but didn’t check if that was an uplisting or not. So I believe it’s up to Nasdaq and the company. Winners could be given a weeks notice, or Rory could have the bell ringing a little later due to shareholders traveling. I doubt any of those companies had shareholders join them.